PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Weeds, diseases, insect pests and other biological agents such as rats, birds, etc. are common constraints to wetland rice production.
http://www.w3.org/ns/prov#wasQuotedFrom
  • fao.org